Perhaps you should try some spelling variations:
cheng choon » cheng boon
yuan cheng » yuan chang, huang cheng, yu cheng
yin hango » yin hang, yin fang, yin yang
yang jun » yang jui, pang jun, yang jin
wan yan » wang yan, nan yan, wai yan
hango a » tango a
a yuan » _ yuan, yan yuan
ngo a » ngos a, neo a, ngo 1

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((wan yan) or (yang jun))) or (((yang judy) or (yang di))))ngo a yuan cheng choon yin hango a ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wan yan) OR (yang jun))) OR (((yang judy) OR (yang di))))ngo a yuan cheng choon yin hango a ;.
• Adding a wildcard symbol may retrieve word variants: ((((wan yan) or (yang jun))) or (((yang judy) or (yang di))))ngo a yuan cheng choon yin hango a ;*.